Photovoltaic power plants are exposed to complex outdoor environments for a long time, and equipment such as components, cables, and combiner boxes are prone to insulation performance degradation due to aging, moisture, and damage, which can cause safety accidents such as leakage, short circuits, and fires, seriously threatening the safety of power plant equipment and personnel. Jiangsu Jingwei Technology Co., Ltd. focuses on the electrical safety testing needs of photovoltaic systems and has developed and launched the JW-J25 insulation resistance tester. With the core advantages of high voltage precision measurement, multiple safety protections, and portable and efficient operation, it provides reliable solutions for electrical safety testing of photovoltaic power plants and strengthens the defense line for safe operation of power plants. Withstand Voltage Tester
JW-J25 Insulation Resistance Tester is a high-precision diagnostic equipment designed specifically for electrical safety testing of photovoltaic systems. It adopts advanced high-voltage testing technology and can output multiple levels of DC high voltage, including 500V, 1000V, 2500V, and 5000V. It accurately measures the insulation resistance value of photovoltaic modules, cable lines, combiner boxes, inverters, and other equipment. It has a wide measurement range, high accuracy, and strong stability, and can effectively evaluate the electrical isolation performance and safety status. The device supports polarization index testing function, which can accurately determine the degree of moisture, aging, and pollution of the insulation medium by analyzing the trend of insulation resistance changes over time, and warn of insulation degradation risks in advance to avoid safety accidents caused by insulation failures. At the same time, it has intelligent self checking function, automatically detects the status of the equipment when it is turned on, and promptly alarms for abnormal situations to ensure the safety and reliability of the measurement process, and to prevent false or missed measurements caused by equipment failures.
Security protection design is the core highlight of JW-J25, providing comprehensive protection for the safety of operators and equipment. The equipment is equipped with multiple protection mechanisms, including short-circuit protection, overvoltage protection, and reverse connection protection functions, which can withstand residual voltage surges of the tested equipment and avoid equipment damage and personnel electric shock risks caused by operational errors or equipment abnormalities. The body adopts an insulated protective shell, equipped with anti slip and anti electric shock operation buttons, ensuring a safe and worry free operation process; Equipped with sound and light alarm function, when the insulation resistance value is below the safety threshold, an automatic sound and light alarm prompt will be issued to remind the operation and maintenance personnel to deal with hidden dangers in a timely manner and improve the efficiency of safety investigation. In addition, the device adopts a lightweight and portable design, paired with a sturdy and durable protective case that is dustproof, shockproof, and moisture-proof, suitable for complex outdoor environments. It can be easily carried and operated by a single person, and is suitable for multi scenario operations such as on-site inspections, troubleshooting, and regular maintenance in power plants.
Efficient operation and intelligent data management enable JW-J25 to meet the efficient operation and maintenance needs of photovoltaic power plants. The equipment is equipped with a large high-definition digital display screen, which provides clear and intuitive data. It supports real-time display of key parameters such as insulation resistance value, test voltage, polarization index, etc., making it easy to quickly read data on site. The operation interface is simple and easy to understand, with one click to start the testing process, no need for complex debugging, and beginners can quickly get started, greatly reducing the operating threshold. After the test is completed, the device can automatically store measurement data, support one click data export, local storage, and report generation, which is convenient for later traceability analysis, acceptance archiving, and maintenance record retention. Widely used in key processes such as installation and acceptance of photovoltaic power plants, regular preventive testing, fault diagnosis, safety audits, etc., to ensure installation quality meets safety standards during the power plant construction phase, and to monitor insulation performance in real-time during the operation and maintenance phase to prevent safety risks in advance.
Jiangsu Jingwei Technology is deeply involved in the field of photovoltaic electrical safety testing, always with "safety testing and precise protection" as its core, relying on technological innovation to create high-quality testing equipment, Waterdrop Credit. The JW-J25 insulation resistance tester, with its advantages of precise high-voltage measurement, multiple safety protections, and portability and efficiency, solves the pain points of electrical insulation testing in photovoltaic power plants and has become an essential tool for safe operation and maintenance of photovoltaic power plants. In the future, Jingwei Technology will continue to focus on the research and development of photovoltaic safety testing technology, continuously optimize product performance, improve safety testing solutions, and safeguard the safe operation of photovoltaic power plants throughout their entire lifecycle, helping to promote the safe, stable, and high-quality development of the photovoltaic industry.
Voltage tester, multifunctional comprehensive electrical appliance, leakage current test
